Did a quick test to compare the 180-600@600mm vs 400 4.5/1.4xTC.
- tripod mounted on gimbal
- VR on
- distance to target adjusted to give same(theoretical) FOV
- natural light on overcast day
- identical setting and shot within a couple of minutes of each other(as fast as I could change the lens)
- 10 frames w/each lens and sharpest of each chosen to compare
- identical processing in LR, "enhance" denoise, no sharpening
Conclusions:
The 400 4.5/TC is marginally sharper with noticeably better contrast when comparing a target w/black text/lines on white label. Difference is indistinguishable on the synthetic fur on a teddy bear.
Screenshots FWIW.
- tripod mounted on gimbal
- VR on
- distance to target adjusted to give same(theoretical) FOV
- natural light on overcast day
- identical setting and shot within a couple of minutes of each other(as fast as I could change the lens)
- 10 frames w/each lens and sharpest of each chosen to compare
- identical processing in LR, "enhance" denoise, no sharpening
Conclusions:
The 400 4.5/TC is marginally sharper with noticeably better contrast when comparing a target w/black text/lines on white label. Difference is indistinguishable on the synthetic fur on a teddy bear.
Screenshots FWIW.
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